Ventilator



March 15, 1932'. J. A. H. slERs 1,849,115

I VENTILATOR Filed June 29,'1951 2 Sheets-Sheet l 2 IN V EN TOR.

fa/AT oRNEY March l5, 1932. J. A. H. slERs 1,849,115

` VENTILATOR Filed June 29, 1951 2 Sheets-*Sheet 2 INVENTOR.

tion 6 are slidably received. Thus, it will be understood that the walls of the several conduits of the casing sections 5 are telescopically engaged within the conduits 15 of the casing section 6. The conduits 15 ofthe casing section 5 are in communication with each other adjacent the closed end of said casing as shown at 18. The bottom wall of the lowermost conduit 15 in casing section 6 is relatively narrow and spaced from the upper end of the curved wall 9 to provide the air inlet opening 19. Similarly, the top wall of the uppermost conduit 15 in the casing section i 6 is relatively narrow to provide an outlet opening 20 at the lower end of the curved wall 10.

Each of the casing sections at its inner side immediately above the curved walls 9 thereof has a. transversely oifset wall section 21. These oifset parts of the casing section p rovide a housing for an electrical heating unit of any desiredtype indicated at 22 provided with a socket 23 to receive a plug 24 whereby said heating unit may be readily connected with the electrical wiring circuit of the house'.

From the above description, it will be understood that when the ventilator is arranged beneath the window sash and properly adjusted so as to engage the closed ends of the casing section against opposite sides of the i window frame, cold air will enter through the opening 11 in the outer side of the casing section 6 and as it flows longitudinally in reverse directions through the lower conduits 15 of the two casing sections in contact ,with the heating element 22, the air will be highly heated. This heated air, successively passing through `the remaining conduits of the ventilator, results in the deposit of dust and other foreign matter which may be carried in suspension thereby upon the walls of the conduits so that when, the Vair inally passes through the outlet opening 20 of the uppermost conduit and through the outlet opening 12 in the inner side of the casing section 6, it will be substantially free of dust and in a suitably heated condition. In this manner, while proper ventilation of the room o-r apartment is obtained, cold draits of air ventering into the room through the ventilator is avoided.

In Fig. 6 of the drawings, I have 'shown a slightly modiii-ed form of the device, in which instead ofthe conduits 15 being in communication with each other at the opposite ends of the ventilator casing and extending longitudinally thereof, these communicating conduits extend transversely of the ventilator casing, This arrangement of the conduits is produced by the provision of the vertically spaced baffle plates or walls 25 ext-ending inwardly from opposite side walls of each ca'sing section and terminating in spaced relation'to the opposite side wall thereof, the latter edge portions of these baille plates being in overlapping relation as clearly shown in Fig. 6 of the drawings. Thus, the heated air is caused to iow alternately transversely of the ventilator in opposite directions between the inlet and outlet openings. This form of the invention may be also made in the two relatively adjustable sections as above eX- plained, in which case the baffle walls 25 of the respective sections will have overlapping sliding engagement upon each other, or the ventilator may. be .made in the form of a single non-adjustable unit as desired.

- From the foregoing descriptionconsidered in connection with the accompanying drawings, the construction, manner of operation and several advantages of my improved ventilator will be clearly and fully understood. It will be apparent that since the device with the exception of the heating unit, is entirely constructed from sheet metal, .that it will be relatively light in weight, and can be easily air circulating conduits and the mounting and arrangement of the heating units, it will be understood thatl in these particulars, as well as the various other detail features hercin disclosed, the device may be embodied in various other alternative mechanical structures.` I therefore, reserve the privilege of incorporating the essential features of my invention in lsuch other modified forms or constructions as may be fairly considered within the spirit and scope of the appended claims.

I claim: Y

1. A window ventilator comprising telescoping casing sections, one of said casing sections at opposite sides thereof and adjacent its upper and lower ends being provided with air outlet and inlet passages respectively, and a plurality of intercommunicating conduits causing a circuitous travel of the air between said inlet and outlet passages, parts of the walls of said conduits being carried by the respective casing sections for movement relative to each other in the adjustment of said casing sections.l y

2.v A window ventilator comprising telescoping casing sections, one of said casing sections at opposite sides thereof and adjacent its upper and lower ends being provided with air outlet and inlet passages respectively, a `plurality of intercommunicating conduits causing a circuitous travel of the air between said inlet and outlet passages, parts of the walls of said conduits being carried by the respective casing sectionsfor movenient relative to each other in the adjustment of said casing sections, and an electrical heating unit carried by one of said casing'sections adjacent to the air inlet passage.

3. A window ventilator comprising telescoping casing sections, one of said casing sections at opposite sides .thereof and yadjacent its upper and lower ends being provided relative to each said casing sections, each of said casing sec-l with air outlet and inlet passages respective-V ly, a plurality of intercommunicating conduits causing a circuitous travel of the air p between inlet and outlet passages, parts of the walls of said conduits Abeingcarried by the respective casing sections for movement other in the adjustment of tions being provided on its inner wall with telescopically engaged parts of a housing, and an electrical heating unit mounted on one of the casing sections extending longi tudinallyl within said housing parallel to certain of the air conduits and adjacent to said n Y air inlet passage.v

v 4. In a window ventilator, relatively ad` justable telescoping casing sections, oneof said casing sections having an air inletpassage extending inwardly, from the outer side v thereof at its lower 'end andan air outlet passage opening upon the inner side ofrsaid v casing section at its upper end, a plurality of longitudinally extending air conduits, each conduit consisting vof Vcomplementary sectionsV carried bythe respective casing sections and having telescoping engagement with conduit sections of the other casing section, the adjacent conduit sections at the louter ends of the respective casing sections l being in communication with eachy other to thereby cause a'circuitous travel of the air through said conduits betweenthe inletand Youtlet passages, and anV electrical heating 'unit-carried by one of the casing sections adjacent to'said air inlet passage.

5. In a window ventilator, relatively adjustable telescoping casing sections, one of said casing sections having an air inlet passage extending inwardly. from the outer side thereof at its lower end and an air outlet passage opening uponjthe inner side of said casing section at its upper end-longitudinally .extending baiiie walls projecting transversely from the opposite ,side walls of the respective casing sectionsand terminating in the side wall of the other spaced relation t0 casing section, said baille walls being verti- Y i fcally spaced apart and causingv the air to flow alternately in Vreverse transverseV direcl tions between thevair inlet and outlet passages,- each of the casing sections being provided with a housing part on the inner side wall thereof, saidhousing parts beingtel`e' scopically engaged with eachother, and an electricaly heating unit carried by one-of the casing sections extending longitudinally within the housing adjacent to vtherair inlet passage. i

In testimony that I claim the foregoing as `my invention, I have signed my name here-..

JOHN A. n. sums. 

